High performance audio on the go! The NuForce Cube is a high quality multi-use speaker perfect for your phone, tablet or any other audio device. The Cube is just under 2.5-inches in size but packs strong punch. NuForce is a veteran in high-end audio electronics and they put their experience and best technology into the Cube. The all-in-one Cube is powered by a lithium battery that gives you about 8 hours of audio beats. Connect to your laptop with the Cube's audiophile grade USB digital-to-analog (DAC) connection which bypasses the low quality DAC on your laptop, further improving the sound. You can also connect to the Cube using a 3.5mm jack and play music directly off your phone or tablet. The NuForce Cube packs high technology audio into a small portable package!